On Thu, May 27, 2010 at 03:13:10PM +0200, Olaf Seibert wrote:
> Is there a way to increase the maximum number of mbufs, or better yet,
> limit the use by whatever is using them too much?

Regarding your first question: I believe kern.ipc.nmbclusters controls
what you want.  This is a loader.conf tunable so you'll need to reboot.
Network buffer tuning is documented, Section 11.13.2.  Please read this
before adjusting the tunable.

http://www.freebsd.org/doc/en/books/handbook/configtuning-kernel-limits.html

It would probably be more effective in the long run to find out why your
mbuf count is so high and determine if said situation is caused by a
problem with the NIC driver, or if there's something going on on your
machine that's causing it.

Regarding your 2nd question: not to my knowledge.

-- 
| Jeremy Chadwick                                   j...@parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |

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